#include <iostream>
using namespace std;

int number = 1;

namespace cpp{
int number = 100;
}//end of namespace cpp

namespace wd
{
int number = 10;
void display()
{
	cout << "wd::display()" << endl;
}
}

using namespace wd;
void test0(){
    cout << wd::number << endl;
}

using namespace cpp;
void test1(){
    cout << cpp::number << endl;
}


int main(int argc, char * argv[])
{
    test0();
    test1();
    return 0;
}

